<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator="/">
  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item>数据统计</el-breadcrumb-item>
  <el-breadcrumb-item>数据列表</el-breadcrumb-item>
  </el-breadcrumb>
  <!-- 卡片视图区域 -->
  <el-card>
  <!-- 为 ECharts 准备一个定义了宽高的 DOM -->
  <div id="main" style="width: 750px;height:400px;"></div>
</el-card>
  </div>
</template>
<script>
// 导入loadsh
import _ from 'lodash'
// 导入echarts
const echarts = require('echarts')
export default {
  data() {
    return {
      // 需要合并的图表数据
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
  created () {},
 async mounted() {
    // 基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'))
  const { data: res } = await this.$http.get('reports/type/1')
  if (res.meta.status !== 200) return this.$message.error('获取图表数据失败！')
  this.$message.success('获取图表数据成功！')
        // 准备数据和配置项
       const result = _.merge(res.data, this.options)
    // 使用刚指定的配置项和数据显示图表。
      myChart.setOption(result)
  },
  methods: {}
}
</script>
<style lang="less" scoped>
</style>
